SIMPLE!?!DONT LOOSE HOPE!!!!!!!!!!! KILL ALL THUNDER LIZARD AT THE BASE OF THE LIGHTHOUSE! WHERE YOU CAN FIND A LITLLE TRINCKLET(PHYENERGYV STONE) AT THE CENTER OF THE LOGO OF THE LIGHTHOUSE!?! SEE?!?!?!?

Go to the room with the psy crystal (The one after the Tunnel Ruins) and go through the doorway on the left where the statue and the electricity is. Save and Shut off you Game Boy. Turn it on, continue on the file you saved on go back into the room with the psy crystal. Run around until you encounter an enemy. It should be a willowisp and a recluse. Flee from that battle. Then run around again untill you get into another battle. This should be a Thunder Lizard. This is the battle comands you should put in:

Isaac: AttackGaret: DefendIvan: AttackMia: DefendYour agility should be lined up so that the turns are like this:Ivan AttacksIsaac AttacksMia DefendsGaret DefendsThunder Lizard Attacks Mia

Then on the second turn input these battle comands:Isaac: Use Djinni FlintGaret: Doesn't MatterIvan: DefendMia: Doesn't matterAgain your agility should be alighned so that the second round goes like this:Ivan DefendsIsaac Unleashes FlintThunder Lizard Dies.

After this you should get the Blessed Mace.Note: There should be no critical hits or weapon unleashes when Isaac or Ivan attack otherwise restart your game boy and try again.